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Sadir Nebulosity Wide Field: There is an enormous nebula complex around Sadir, the central star of the constellation of Cygnus or the Swan. The Ha narrow-band image displays this nebula complex in its details: In the lower left center of the picture is Butterfly Nebula, more to the right Crescent Nebula and in the rest of the image a variety of other nebulae and open clusters, among them M29, within this star-dense Milky Way  region. The brighter nebulosity up left from the center is IC 1318a, which carries no popular name.

The deep dark spot in the upper central part is B 342.



Object Sadir Nebulosity Wide Field
Category H-alpha Images
Designation IC 1318, 1318a
Constellation Cygnus
Optics Asahi Takumar 135 mm f/3.5 @ f/4.5
Mount Astro-Physics 900 GTO
Camera QHY8/ALccd 6c
Exposure 11 x 7.5min Astronomik Ha filter, Maxim DL for image acquisition
Calibration No Dark- and Flat Frame
Guiding Meade DSI Pro II and TMB 130 as Guide Scope, Guiding Software: Maxim DL
Processing ImagesPlus, Photoshop
Location-Date Eningen, Germany - 26 Aug 2007
 
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